"Is it only Creatures who can feed on souls?"
"Beings have done this too. There was this one guy, an albino wolf... Elvis of Melbourne or something. He had a black sword that could suck the souls out of his victims and consume them to prolong his own wicked existence. Then one day he cut himself on it and that was it for him."

This is the coolest panel from page 505 of Project Future, and an obvious reference to Elric of Melniboné from Michael Moorcock's stories, by way of Hawkwind's "Live Chronicles" double album.
This was drawn and coloured by , with a few tweaks from me, specifically making his fur white instead of soft blue.

The full page can be seen here: http://projectfuturecomic.com/strip.php?strip=505

There's no blood or mess so I think I can probably wing PG for this even though he's technically eating the brown guy's immortal soul which is an horrific thing to do and a capital crime even in places like Daryil's realm which is generally pretty lenient.